1 /* 2 * wm8960.c -- WM8960 ALSA SoC Audio driver 3 * 4 * Copyright 2007-11 Wolfson Microelectronics, plc 5 * 6 * Author: Liam Girdwood 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License version 2 as 10 * published by the Free Software Foundation. 11 */ 12 13 #include <linux/module.h> 14 #include <linux/moduleparam.h> 15 #include <linux/init.h> 16 #include <linux/delay.h> 17 #include <linux/pm.h> 18 #include <linux/clk.h> 19 #include <linux/i2c.h> 20 #include <linux/slab.h> 21 #include <sound/core.h> 22 #include <sound/pcm.h> 23 #include <sound/pcm_params.h> 24 #include <sound/soc.h> 25 #include <sound/initval.h> 26 #include <sound/tlv.h> 27 #include <sound/wm8960.h> 28 29 #include "wm8960.h" 30 31 /* R25 - Power 1 */ 32 #define WM8960_VMID_MASK 0x180 33 #define WM8960_VREF 0x40 34 35 /* R26 - Power 2 */ 36 #define WM8960_PWR2_LOUT1 0x40 37 #define WM8960_PWR2_ROUT1 0x20 38 #define WM8960_PWR2_OUT3 0x02 39 40 /* R28 - Anti-pop 1 */ 41 #define WM8960_POBCTRL 0x80 42 #define WM8960_BUFDCOPEN 0x10 43 #define WM8960_BUFIOEN 0x08 44 #define WM8960_SOFT_ST 0x04 45 #define WM8960_HPSTBY 0x01 46 47 /* R29 - Anti-pop 2 */ 48 #define WM8960_DISOP 0x40 49 #define WM8960_DRES_MASK 0x30 50 51 /* 52 * wm8960 register cache 53 * We can't read the WM8960 register space when we are 54 * using 2 wire for device control, so we cache them instead. 55 */ 56 static const struct reg_default wm8960_reg_defaults[] = { 57 { 0x0, 0x00a7 }, 58 { 0x1, 0x00a7 }, 59 { 0x2, 0x0000 }, 60 { 0x3, 0x0000 }, 61 { 0x4, 0x0000 }, 62 { 0x5, 0x0008 }, 63 { 0x6, 0x0000 }, 64 { 0x7, 0x000a }, 65 { 0x8, 0x01c0 }, 66 { 0x9, 0x0000 }, 67 { 0xa, 0x00ff }, 68 { 0xb, 0x00ff }, 69 70 { 0x10, 0x0000 }, 71 { 0x11, 0x007b }, 72 { 0x12, 0x0100 }, 73 { 0x13, 0x0032 }, 74 { 0x14, 0x0000 }, 75 { 0x15, 0x00c3 }, 76 { 0x16, 0x00c3 }, 77 { 0x17, 0x01c0 }, 78 { 0x18, 0x0000 }, 79 { 0x19, 0x0000 }, 80 { 0x1a, 0x0000 }, 81 { 0x1b, 0x0000 }, 82 { 0x1c, 0x0000 }, 83 { 0x1d, 0x0000 }, 84 85 { 0x20, 0x0100 }, 86 { 0x21, 0x0100 }, 87 { 0x22, 0x0050 }, 88 89 { 0x25, 0x0050 }, 90 { 0x26, 0x0000 }, 91 { 0x27, 0x0000 }, 92 { 0x28, 0x0000 }, 93 { 0x29, 0x0000 }, 94 { 0x2a, 0x0040 }, 95 { 0x2b, 0x0000 }, 96 { 0x2c, 0x0000 }, 97 { 0x2d, 0x0050 }, 98 { 0x2e, 0x0050 }, 99 { 0x2f, 0x0000 }, 100 { 0x30, 0x0002 }, 101 { 0x31, 0x0037 }, 102 103 { 0x33, 0x0080 }, 104 { 0x34, 0x0008 }, 105 { 0x35, 0x0031 }, 106 { 0x36, 0x0026 }, 107 { 0x37, 0x00e9 }, 108 }; 109 110 static bool wm8960_volatile(struct device *dev, unsigned int reg) 111 { 112 switch (reg) { 113 case WM8960_RESET: 114 return true; 115 default: 116 return false; 117 } 118 } 119 120 struct wm8960_priv { 121 struct clk *mclk; 122 struct regmap *regmap; 123 int (*set_bias_level)(struct snd_soc_codec *, 124 enum snd_soc_bias_level level); 125 struct snd_soc_dapm_widget *lout1; 126 struct snd_soc_dapm_widget *rout1; 127 struct snd_soc_dapm_widget *out3; 128 bool deemph; 129 int playback_fs; 130 struct wm8960_data pdata; 131 }; 132 133 #define wm8960_reset(c) regmap_write(c, WM8960_RESET, 0) 134 135 /* enumerated controls */ 136 static const char *wm8960_polarity[] = {"No Inversion", "Left Inverted", 137 "Right Inverted", "Stereo Inversion"}; 138 static const char *wm8960_3d_upper_cutoff[] = {"High", "Low"}; 139 static const char *wm8960_3d_lower_cutoff[] = {"Low", "High"}; 140 static const char *wm8960_alcfunc[] = {"Off", "Right", "Left", "Stereo"}; 141 static const char *wm8960_alcmode[] = {"ALC", "Limiter"}; 142 143 static const struct soc_enum wm8960_enum[] = { 144 SOC_ENUM_SINGLE(WM8960_DACCTL1, 5, 4, wm8960_polarity), 145 SOC_ENUM_SINGLE(WM8960_DACCTL2, 5, 4, wm8960_polarity), 146 SOC_ENUM_SINGLE(WM8960_3D, 6, 2, wm8960_3d_upper_cutoff), 147 SOC_ENUM_SINGLE(WM8960_3D, 5, 2, wm8960_3d_lower_cutoff), 148 SOC_ENUM_SINGLE(WM8960_ALC1, 7, 4, wm8960_alcfunc), 149 SOC_ENUM_SINGLE(WM8960_ALC3, 8, 2, wm8960_alcmode), 150 }; 151 152 static const int deemph_settings[] = { 0, 32000, 44100, 48000 }; 153 154 static int wm8960_set_deemph(struct snd_soc_codec *codec) 155 { 156 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); 157 int val, i, best; 158 159 /* If we're using deemphasis select the nearest available sample 160 * rate. 161 */ 162 if (wm8960->deemph) { 163 best = 1; 164 for (i = 2; i < ARRAY_SIZE(deemph_settings); i++) { 165 if (abs(deemph_settings[i] - wm8960->playback_fs) < 166 abs(deemph_settings[best] - wm8960->playback_fs)) 167 best = i; 168 } 169 170 val = best << 1; 171 } else { 172 val = 0; 173 } 174 175 dev_dbg(codec->dev, "Set deemphasis %d\n", val); 176 177 return snd_soc_update_bits(codec, WM8960_DACCTL1, 178 0x6, val); 179 } 180 181 static int wm8960_get_deemph(struct snd_kcontrol *kcontrol, 182 struct snd_ctl_elem_value *ucontrol) 183 { 184 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); 185 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); 186 187 ucontrol->value.integer.value[0] = wm8960->deemph; 188 return 0; 189 } 190 191 static int wm8960_put_deemph(struct snd_kcontrol *kcontrol, 192 struct snd_ctl_elem_value *ucontrol) 193 { 194 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol); 195 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); 196 int deemph = ucontrol->value.integer.value[0]; 197 198 if (deemph > 1) 199 return -EINVAL; 200 201 wm8960->deemph = deemph; 202 203 return wm8960_set_deemph(codec); 204 } 205 206 static const DECLARE_TLV_DB_SCALE(adc_tlv, -9700, 50, 0); 207 static const DECLARE_TLV_DB_SCALE(dac_tlv, -12700, 50, 1); 208 static const DECLARE_TLV_DB_SCALE(bypass_tlv, -2100, 300, 0); 209 static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1); 210 static const DECLARE_TLV_DB_SCALE(boost_tlv, -1200, 300, 1); 211 212 static const struct snd_kcontrol_new wm8960_snd_controls[] = { 213 SOC_DOUBLE_R_TLV("Capture Volume", WM8960_LINVOL, WM8960_RINVOL, 214 0, 63, 0, adc_tlv), 215 SOC_DOUBLE_R("Capture Volume ZC Switch", WM8960_LINVOL, WM8960_RINVOL, 216 6, 1, 0), 217 SOC_DOUBLE_R("Capture Switch", WM8960_LINVOL, WM8960_RINVOL, 218 7, 1, 0), 219 220 SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT3 Volume", 221 WM8960_INBMIX1, 4, 7, 0, boost_tlv), 222 SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT2 Volume", 223 WM8960_INBMIX1, 1, 7, 0, boost_tlv), 224 SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT3 Volume", 225 WM8960_INBMIX2, 4, 7, 0, boost_tlv), 226 SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT2 Volume", 227 WM8960_INBMIX2, 1, 7, 0, boost_tlv), 228 229 SOC_DOUBLE_R_TLV("Playback Volume", WM8960_LDAC, WM8960_RDAC, 230 0, 255, 0, dac_tlv), 231 232 SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8960_LOUT1, WM8960_ROUT1, 233 0, 127, 0, out_tlv), 234 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8960_LOUT1, WM8960_ROUT1, 235 7, 1, 0), 236 237 SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8960_LOUT2, WM8960_ROUT2, 238 0, 127, 0, out_tlv), 239 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8960_LOUT2, WM8960_ROUT2, 240 7, 1, 0), 241 SOC_SINGLE("Speaker DC Volume", WM8960_CLASSD3, 3, 5, 0), 242 SOC_SINGLE("Speaker AC Volume", WM8960_CLASSD3, 0, 5, 0), 243 244 SOC_SINGLE("PCM Playback -6dB Switch", WM8960_DACCTL1, 7, 1, 0), 245 SOC_ENUM("ADC Polarity", wm8960_enum[0]), 246 SOC_SINGLE("ADC High Pass Filter Switch", WM8960_DACCTL1, 0, 1, 0), 247 248 SOC_ENUM("DAC Polarity", wm8960_enum[2]), 249 SOC_SINGLE_BOOL_EXT("DAC Deemphasis Switch", 0, 250 wm8960_get_deemph, wm8960_put_deemph), 251 252 SOC_ENUM("3D Filter Upper Cut-Off", wm8960_enum[2]), 253 SOC_ENUM("3D Filter Lower Cut-Off", wm8960_enum[3]), 254 SOC_SINGLE("3D Volume", WM8960_3D, 1, 15, 0), 255 SOC_SINGLE("3D Switch", WM8960_3D, 0, 1, 0), 256 257 SOC_ENUM("ALC Function", wm8960_enum[4]), 258 SOC_SINGLE("ALC Max Gain", WM8960_ALC1, 4, 7, 0), 259 SOC_SINGLE("ALC Target", WM8960_ALC1, 0, 15, 1), 260 SOC_SINGLE("ALC Min Gain", WM8960_ALC2, 4, 7, 0), 261 SOC_SINGLE("ALC Hold Time", WM8960_ALC2, 0, 15, 0), 262 SOC_ENUM("ALC Mode", wm8960_enum[5]), 263 SOC_SINGLE("ALC Decay", WM8960_ALC3, 4, 15, 0), 264 SOC_SINGLE("ALC Attack", WM8960_ALC3, 0, 15, 0), 265 266 SOC_SINGLE("Noise Gate Threshold", WM8960_NOISEG, 3, 31, 0), 267 SOC_SINGLE("Noise Gate Switch", WM8960_NOISEG, 0, 1, 0), 268 269 SOC_DOUBLE_R_TLV("ADC PCM Capture Volume", WM8960_LADC, WM8960_RADC, 270 0, 255, 0, adc_tlv), 271 272 SOC_SINGLE_TLV("Left Output Mixer Boost Bypass Volume", 273 WM8960_BYPASS1, 4, 7, 1, bypass_tlv), 274 SOC_SINGLE_TLV("Left Output Mixer LINPUT3 Volume", 275 WM8960_LOUTMIX, 4, 7, 1, bypass_tlv), 276 SOC_SINGLE_TLV("Right Output Mixer Boost Bypass Volume", 277 WM8960_BYPASS2, 4, 7, 1, bypass_tlv), 278 SOC_SINGLE_TLV("Right Output Mixer RINPUT3 Volume", 279 WM8960_ROUTMIX, 4, 7, 1, bypass_tlv), 280 }; 281 282 static const struct snd_kcontrol_new wm8960_lin_boost[] = { 283 SOC_DAPM_SINGLE("LINPUT2 Switch", WM8960_LINPATH, 6, 1, 0), 284 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LINPATH, 7, 1, 0), 285 SOC_DAPM_SINGLE("LINPUT1 Switch", WM8960_LINPATH, 8, 1, 0), 286 }; 287 288 static const struct snd_kcontrol_new wm8960_lin[] = { 289 SOC_DAPM_SINGLE("Boost Switch", WM8960_LINPATH, 3, 1, 0), 290 }; 291 292 static const struct snd_kcontrol_new wm8960_rin_boost[] = { 293 SOC_DAPM_SINGLE("RINPUT2 Switch", WM8960_RINPATH, 6, 1, 0), 294 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_RINPATH, 7, 1, 0), 295 SOC_DAPM_SINGLE("RINPUT1 Switch", WM8960_RINPATH, 8, 1, 0), 296 }; 297 298 static const struct snd_kcontrol_new wm8960_rin[] = { 299 SOC_DAPM_SINGLE("Boost Switch", WM8960_RINPATH, 3, 1, 0), 300 }; 301 302 static const struct snd_kcontrol_new wm8960_loutput_mixer[] = { 303 SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_LOUTMIX, 8, 1, 0), 304 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LOUTMIX, 7, 1, 0), 305 SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS1, 7, 1, 0), 306 }; 307 308 static const struct snd_kcontrol_new wm8960_routput_mixer[] = { 309 SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_ROUTMIX, 8, 1, 0), 310 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_ROUTMIX, 7, 1, 0), 311 SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS2, 7, 1, 0), 312 }; 313 314 static const struct snd_kcontrol_new wm8960_mono_out[] = { 315 SOC_DAPM_SINGLE("Left Switch", WM8960_MONOMIX1, 7, 1, 0), 316 SOC_DAPM_SINGLE("Right Switch", WM8960_MONOMIX2, 7, 1, 0), 317 }; 318 319 static const struct snd_soc_dapm_widget wm8960_dapm_widgets[] = { 320 SND_SOC_DAPM_INPUT("LINPUT1"), 321 SND_SOC_DAPM_INPUT("RINPUT1"), 322 SND_SOC_DAPM_INPUT("LINPUT2"), 323 SND_SOC_DAPM_INPUT("RINPUT2"), 324 SND_SOC_DAPM_INPUT("LINPUT3"), 325 SND_SOC_DAPM_INPUT("RINPUT3"), 326 327 SND_SOC_DAPM_SUPPLY("MICB", WM8960_POWER1, 1, 0, NULL, 0), 328 329 SND_SOC_DAPM_MIXER("Left Boost Mixer", WM8960_POWER1, 5, 0, 330 wm8960_lin_boost, ARRAY_SIZE(wm8960_lin_boost)), 331 SND_SOC_DAPM_MIXER("Right Boost Mixer", WM8960_POWER1, 4, 0, 332 wm8960_rin_boost, ARRAY_SIZE(wm8960_rin_boost)), 333 334 SND_SOC_DAPM_MIXER("Left Input Mixer", WM8960_POWER3, 5, 0, 335 wm8960_lin, ARRAY_SIZE(wm8960_lin)), 336 SND_SOC_DAPM_MIXER("Right Input Mixer", WM8960_POWER3, 4, 0, 337 wm8960_rin, ARRAY_SIZE(wm8960_rin)), 338 339 SND_SOC_DAPM_ADC("Left ADC", "Capture", WM8960_POWER1, 3, 0), 340 SND_SOC_DAPM_ADC("Right ADC", "Capture", WM8960_POWER1, 2, 0), 341 342 SND_SOC_DAPM_DAC("Left DAC", "Playback", WM8960_POWER2, 8, 0), 343 SND_SOC_DAPM_DAC("Right DAC", "Playback", WM8960_POWER2, 7, 0), 344 345 SND_SOC_DAPM_MIXER("Left Output Mixer", WM8960_POWER3, 3, 0, 346 &wm8960_loutput_mixer[0], 347 ARRAY_SIZE(wm8960_loutput_mixer)), 348 SND_SOC_DAPM_MIXER("Right Output Mixer", WM8960_POWER3, 2, 0, 349 &wm8960_routput_mixer[0], 350 ARRAY_SIZE(wm8960_routput_mixer)), 351 352 SND_SOC_DAPM_PGA("LOUT1 PGA", WM8960_POWER2, 6, 0, NULL, 0), 353 SND_SOC_DAPM_PGA("ROUT1 PGA", WM8960_POWER2, 5, 0, NULL, 0), 354 355 SND_SOC_DAPM_PGA("Left Speaker PGA", WM8960_POWER2, 4, 0, NULL, 0), 356 SND_SOC_DAPM_PGA("Right Speaker PGA", WM8960_POWER2, 3, 0, NULL, 0), 357 358 SND_SOC_DAPM_PGA("Right Speaker Output", WM8960_CLASSD1, 7, 0, NULL, 0), 359 SND_SOC_DAPM_PGA("Left Speaker Output", WM8960_CLASSD1, 6, 0, NULL, 0), 360 361 SND_SOC_DAPM_OUTPUT("SPK_LP"), 362 SND_SOC_DAPM_OUTPUT("SPK_LN"), 363 SND_SOC_DAPM_OUTPUT("HP_L"), 364 SND_SOC_DAPM_OUTPUT("HP_R"), 365 SND_SOC_DAPM_OUTPUT("SPK_RP"), 366 SND_SOC_DAPM_OUTPUT("SPK_RN"), 367 SND_SOC_DAPM_OUTPUT("OUT3"), 368 }; 369 370 static const struct snd_soc_dapm_widget wm8960_dapm_widgets_out3[] = { 371 SND_SOC_DAPM_MIXER("Mono Output Mixer", WM8960_POWER2, 1, 0, 372 &wm8960_mono_out[0], 373 ARRAY_SIZE(wm8960_mono_out)), 374 }; 375 376 /* Represent OUT3 as a PGA so that it gets turned on with LOUT1/ROUT1 */ 377 static const struct snd_soc_dapm_widget wm8960_dapm_widgets_capless[] = { 378 SND_SOC_DAPM_PGA("OUT3 VMID", WM8960_POWER2, 1, 0, NULL, 0), 379 }; 380 381 static const struct snd_soc_dapm_route audio_paths[] = { 382 { "Left Boost Mixer", "LINPUT1 Switch", "LINPUT1" }, 383 { "Left Boost Mixer", "LINPUT2 Switch", "LINPUT2" }, 384 { "Left Boost Mixer", "LINPUT3 Switch", "LINPUT3" }, 385 386 { "Left Input Mixer", "Boost Switch", "Left Boost Mixer", }, 387 { "Left Input Mixer", NULL, "LINPUT1", }, /* Really Boost Switch */ 388 { "Left Input Mixer", NULL, "LINPUT2" }, 389 { "Left Input Mixer", NULL, "LINPUT3" }, 390 391 { "Right Boost Mixer", "RINPUT1 Switch", "RINPUT1" }, 392 { "Right Boost Mixer", "RINPUT2 Switch", "RINPUT2" }, 393 { "Right Boost Mixer", "RINPUT3 Switch", "RINPUT3" }, 394 395 { "Right Input Mixer", "Boost Switch", "Right Boost Mixer", }, 396 { "Right Input Mixer", NULL, "RINPUT1", }, /* Really Boost Switch */ 397 { "Right Input Mixer", NULL, "RINPUT2" }, 398 { "Right Input Mixer", NULL, "LINPUT3" }, 399 400 { "Left ADC", NULL, "Left Input Mixer" }, 401 { "Right ADC", NULL, "Right Input Mixer" }, 402 403 { "Left Output Mixer", "LINPUT3 Switch", "LINPUT3" }, 404 { "Left Output Mixer", "Boost Bypass Switch", "Left Boost Mixer"} , 405 { "Left Output Mixer", "PCM Playback Switch", "Left DAC" }, 406 407 { "Right Output Mixer", "RINPUT3 Switch", "RINPUT3" }, 408 { "Right Output Mixer", "Boost Bypass Switch", "Right Boost Mixer" } , 409 { "Right Output Mixer", "PCM Playback Switch", "Right DAC" }, 410 411 { "LOUT1 PGA", NULL, "Left Output Mixer" }, 412 { "ROUT1 PGA", NULL, "Right Output Mixer" }, 413 414 { "HP_L", NULL, "LOUT1 PGA" }, 415 { "HP_R", NULL, "ROUT1 PGA" }, 416 417 { "Left Speaker PGA", NULL, "Left Output Mixer" }, 418 { "Right Speaker PGA", NULL, "Right Output Mixer" }, 419 420 { "Left Speaker Output", NULL, "Left Speaker PGA" }, 421 { "Right Speaker Output", NULL, "Right Speaker PGA" }, 422 423 { "SPK_LN", NULL, "Left Speaker Output" }, 424 { "SPK_LP", NULL, "Left Speaker Output" }, 425 { "SPK_RN", NULL, "Right Speaker Output" }, 426 { "SPK_RP", NULL, "Right Speaker Output" }, 427 }; 428 429 static const struct snd_soc_dapm_route audio_paths_out3[] = { 430 { "Mono Output Mixer", "Left Switch", "Left Output Mixer" }, 431 { "Mono Output Mixer", "Right Switch", "Right Output Mixer" }, 432 433 { "OUT3", NULL, "Mono Output Mixer", } 434 }; 435 436 static const struct snd_soc_dapm_route audio_paths_capless[] = { 437 { "HP_L", NULL, "OUT3 VMID" }, 438 { "HP_R", NULL, "OUT3 VMID" }, 439 440 { "OUT3 VMID", NULL, "Left Output Mixer" }, 441 { "OUT3 VMID", NULL, "Right Output Mixer" }, 442 }; 443 444 static int wm8960_add_widgets(struct snd_soc_codec *codec) 445 { 446 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); 447 struct wm8960_data *pdata = &wm8960->pdata; 448 struct snd_soc_dapm_context *dapm = &codec->dapm; 449 struct snd_soc_dapm_widget *w; 450 451 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets, 452 ARRAY_SIZE(wm8960_dapm_widgets)); 453 454 snd_soc_dapm_add_routes(dapm, audio_paths, ARRAY_SIZE(audio_paths)); 455 456 /* In capless mode OUT3 is used to provide VMID for the 457 * headphone outputs, otherwise it is used as a mono mixer. 458 */ 459 if (pdata && pdata->capless) { 460 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets_capless, 461 ARRAY_SIZE(wm8960_dapm_widgets_capless)); 462 463 snd_soc_dapm_add_routes(dapm, audio_paths_capless, 464 ARRAY_SIZE(audio_paths_capless)); 465 } else { 466 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets_out3, 467 ARRAY_SIZE(wm8960_dapm_widgets_out3)); 468 469 snd_soc_dapm_add_routes(dapm, audio_paths_out3, 470 ARRAY_SIZE(audio_paths_out3)); 471 } 472 473 /* We need to power up the headphone output stage out of 474 * sequence for capless mode. To save scanning the widget 475 * list each time to find the desired power state do so now 476 * and save the result. 477 */ 478 list_for_each_entry(w, &codec->component.card->widgets, list) { 479 if (w->dapm != &codec->dapm) 480 continue; 481 if (strcmp(w->name, "LOUT1 PGA") == 0) 482 wm8960->lout1 = w; 483 if (strcmp(w->name, "ROUT1 PGA") == 0) 484 wm8960->rout1 = w; 485 if (strcmp(w->name, "OUT3 VMID") == 0) 486 wm8960->out3 = w; 487 } 488 489 return 0; 490 } 491 492 static int wm8960_set_dai_fmt(struct snd_soc_dai *codec_dai, 493 unsigned int fmt) 494 { 495 struct snd_soc_codec *codec = codec_dai->codec; 496 u16 iface = 0; 497 498 /* set master/slave audio interface */ 499 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 500 case SND_SOC_DAIFMT_CBM_CFM: 501 iface |= 0x0040; 502 break; 503 case SND_SOC_DAIFMT_CBS_CFS: 504 break; 505 default: 506 return -EINVAL; 507 } 508 509 /* interface format */ 510 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 511 case SND_SOC_DAIFMT_I2S: 512 iface |= 0x0002; 513 break; 514 case SND_SOC_DAIFMT_RIGHT_J: 515 break; 516 case SND_SOC_DAIFMT_LEFT_J: 517 iface |= 0x0001; 518 break; 519 case SND_SOC_DAIFMT_DSP_A: 520 iface |= 0x0003; 521 break; 522 case SND_SOC_DAIFMT_DSP_B: 523 iface |= 0x0013; 524 break; 525 default: 526 return -EINVAL; 527 } 528 529 /* clock inversion */ 530 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 531 case SND_SOC_DAIFMT_NB_NF: 532 break; 533 case SND_SOC_DAIFMT_IB_IF: 534 iface |= 0x0090; 535 break; 536 case SND_SOC_DAIFMT_IB_NF: 537 iface |= 0x0080; 538 break; 539 case SND_SOC_DAIFMT_NB_IF: 540 iface |= 0x0010; 541 break; 542 default: 543 return -EINVAL; 544 } 545 546 /* set iface */ 547 snd_soc_write(codec, WM8960_IFACE1, iface); 548 return 0; 549 } 550 551 static struct { 552 int rate; 553 unsigned int val; 554 } alc_rates[] = { 555 { 48000, 0 }, 556 { 44100, 0 }, 557 { 32000, 1 }, 558 { 22050, 2 }, 559 { 24000, 2 }, 560 { 16000, 3 }, 561 { 11025, 4 }, 562 { 12000, 4 }, 563 { 8000, 5 }, 564 }; 565 566 static int wm8960_hw_params(struct snd_pcm_substream *substream, 567 struct snd_pcm_hw_params *params, 568 struct snd_soc_dai *dai) 569 { 570 struct snd_soc_codec *codec = dai->codec; 571 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); 572 u16 iface = snd_soc_read(codec, WM8960_IFACE1) & 0xfff3; 573 int i; 574 575 /* bit size */ 576 switch (params_width(params)) { 577 case 16: 578 break; 579 case 20: 580 iface |= 0x0004; 581 break; 582 case 24: 583 iface |= 0x0008; 584 break; 585 default: 586 dev_err(codec->dev, "unsupported width %d\n", 587 params_width(params)); 588 return -EINVAL; 589 } 590 591 /* Update filters for the new rate */ 592 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { 593 wm8960->playback_fs = params_rate(params); 594 wm8960_set_deemph(codec); 595 } else { 596 for (i = 0; i < ARRAY_SIZE(alc_rates); i++) 597 if (alc_rates[i].rate == params_rate(params)) 598 snd_soc_update_bits(codec, 599 WM8960_ADDCTL3, 0x7, 600 alc_rates[i].val); 601 } 602 603 /* set iface */ 604 snd_soc_write(codec, WM8960_IFACE1, iface); 605 return 0; 606 } 607 608 static int wm8960_mute(struct snd_soc_dai *dai, int mute) 609 { 610 struct snd_soc_codec *codec = dai->codec; 611 612 if (mute) 613 snd_soc_update_bits(codec, WM8960_DACCTL1, 0x8, 0x8); 614 else 615 snd_soc_update_bits(codec, WM8960_DACCTL1, 0x8, 0); 616 return 0; 617 } 618 619 static int wm8960_set_bias_level_out3(struct snd_soc_codec *codec, 620 enum snd_soc_bias_level level) 621 { 622 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); 623 int ret; 624 625 switch (level) { 626 case SND_SOC_BIAS_ON: 627 break; 628 629 case SND_SOC_BIAS_PREPARE: 630 switch (codec->dapm.bias_level) { 631 case SND_SOC_BIAS_STANDBY: 632 if (!IS_ERR(wm8960->mclk)) { 633 ret = clk_prepare_enable(wm8960->mclk); 634 if (ret) { 635 dev_err(codec->dev, 636 "Failed to enable MCLK: %d\n", 637 ret); 638 return ret; 639 } 640 } 641 642 /* Set VMID to 2x50k */ 643 snd_soc_update_bits(codec, WM8960_POWER1, 0x180, 0x80); 644 break; 645 646 case SND_SOC_BIAS_ON: 647 if (!IS_ERR(wm8960->mclk)) 648 clk_disable_unprepare(wm8960->mclk); 649 break; 650 651 default: 652 break; 653 } 654 655 break; 656 657 case SND_SOC_BIAS_STANDBY: 658 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { 659 regcache_sync(wm8960->regmap); 660 661 /* Enable anti-pop features */ 662 snd_soc_write(codec, WM8960_APOP1, 663 WM8960_POBCTRL | WM8960_SOFT_ST | 664 WM8960_BUFDCOPEN | WM8960_BUFIOEN); 665 666 /* Enable & ramp VMID at 2x50k */ 667 snd_soc_update_bits(codec, WM8960_POWER1, 0x80, 0x80); 668 msleep(100); 669 670 /* Enable VREF */ 671 snd_soc_update_bits(codec, WM8960_POWER1, WM8960_VREF, 672 WM8960_VREF); 673 674 /* Disable anti-pop features */ 675 snd_soc_write(codec, WM8960_APOP1, WM8960_BUFIOEN); 676 } 677 678 /* Set VMID to 2x250k */ 679 snd_soc_update_bits(codec, WM8960_POWER1, 0x180, 0x100); 680 break; 681 682 case SND_SOC_BIAS_OFF: 683 /* Enable anti-pop features */ 684 snd_soc_write(codec, WM8960_APOP1, 685 WM8960_POBCTRL | WM8960_SOFT_ST | 686 WM8960_BUFDCOPEN | WM8960_BUFIOEN); 687 688 /* Disable VMID and VREF, let them discharge */ 689 snd_soc_write(codec, WM8960_POWER1, 0); 690 msleep(600); 691 break; 692 } 693 694 codec->dapm.bias_level = level; 695 696 return 0; 697 } 698 699 static int wm8960_set_bias_level_capless(struct snd_soc_codec *codec, 700 enum snd_soc_bias_level level) 701 { 702 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); 703 int reg, ret; 704 705 switch (level) { 706 case SND_SOC_BIAS_ON: 707 break; 708 709 case SND_SOC_BIAS_PREPARE: 710 switch (codec->dapm.bias_level) { 711 case SND_SOC_BIAS_STANDBY: 712 /* Enable anti pop mode */ 713 snd_soc_update_bits(codec, WM8960_APOP1, 714 WM8960_POBCTRL | WM8960_SOFT_ST | 715 WM8960_BUFDCOPEN, 716 WM8960_POBCTRL | WM8960_SOFT_ST | 717 WM8960_BUFDCOPEN); 718 719 /* Enable LOUT1, ROUT1 and OUT3 if they're enabled */ 720 reg = 0; 721 if (wm8960->lout1 && wm8960->lout1->power) 722 reg |= WM8960_PWR2_LOUT1; 723 if (wm8960->rout1 && wm8960->rout1->power) 724 reg |= WM8960_PWR2_ROUT1; 725 if (wm8960->out3 && wm8960->out3->power) 726 reg |= WM8960_PWR2_OUT3; 727 snd_soc_update_bits(codec, WM8960_POWER2, 728 WM8960_PWR2_LOUT1 | 729 WM8960_PWR2_ROUT1 | 730 WM8960_PWR2_OUT3, reg); 731 732 /* Enable VMID at 2*50k */ 733 snd_soc_update_bits(codec, WM8960_POWER1, 734 WM8960_VMID_MASK, 0x80); 735 736 /* Ramp */ 737 msleep(100); 738 739 /* Enable VREF */ 740 snd_soc_update_bits(codec, WM8960_POWER1, 741 WM8960_VREF, WM8960_VREF); 742 743 msleep(100); 744 745 if (!IS_ERR(wm8960->mclk)) { 746 ret = clk_prepare_enable(wm8960->mclk); 747 if (ret) { 748 dev_err(codec->dev, 749 "Failed to enable MCLK: %d\n", 750 ret); 751 return ret; 752 } 753 } 754 break; 755 756 case SND_SOC_BIAS_ON: 757 if (!IS_ERR(wm8960->mclk)) 758 clk_disable_unprepare(wm8960->mclk); 759 760 /* Enable anti-pop mode */ 761 snd_soc_update_bits(codec, WM8960_APOP1, 762 WM8960_POBCTRL | WM8960_SOFT_ST | 763 WM8960_BUFDCOPEN, 764 WM8960_POBCTRL | WM8960_SOFT_ST | 765 WM8960_BUFDCOPEN); 766 767 /* Disable VMID and VREF */ 768 snd_soc_update_bits(codec, WM8960_POWER1, 769 WM8960_VREF | WM8960_VMID_MASK, 0); 770 break; 771 772 case SND_SOC_BIAS_OFF: 773 regcache_sync(wm8960->regmap); 774 break; 775 default: 776 break; 777 } 778 break; 779 780 case SND_SOC_BIAS_STANDBY: 781 switch (codec->dapm.bias_level) { 782 case SND_SOC_BIAS_PREPARE: 783 /* Disable HP discharge */ 784 snd_soc_update_bits(codec, WM8960_APOP2, 785 WM8960_DISOP | WM8960_DRES_MASK, 786 0); 787 788 /* Disable anti-pop features */ 789 snd_soc_update_bits(codec, WM8960_APOP1, 790 WM8960_POBCTRL | WM8960_SOFT_ST | 791 WM8960_BUFDCOPEN, 792 WM8960_POBCTRL | WM8960_SOFT_ST | 793 WM8960_BUFDCOPEN); 794 break; 795 796 default: 797 break; 798 } 799 break; 800 801 case SND_SOC_BIAS_OFF: 802 break; 803 } 804 805 codec->dapm.bias_level = level; 806 807 return 0; 808 } 809 810 /* PLL divisors */ 811 struct _pll_div { 812 u32 pre_div:1; 813 u32 n:4; 814 u32 k:24; 815 }; 816 817 /* The size in bits of the pll divide multiplied by 10 818 * to allow rounding later */ 819 #define FIXED_PLL_SIZE ((1 << 24) * 10) 820 821 static int pll_factors(unsigned int source, unsigned int target, 822 struct _pll_div *pll_div) 823 { 824 unsigned long long Kpart; 825 unsigned int K, Ndiv, Nmod; 826 827 pr_debug("WM8960 PLL: setting %dHz->%dHz\n", source, target); 828 829 /* Scale up target to PLL operating frequency */ 830 target *= 4; 831 832 Ndiv = target / source; 833 if (Ndiv < 6) { 834 source >>= 1; 835 pll_div->pre_div = 1; 836 Ndiv = target / source; 837 } else 838 pll_div->pre_div = 0; 839 840 if ((Ndiv < 6) || (Ndiv > 12)) { 841 pr_err("WM8960 PLL: Unsupported N=%d\n", Ndiv); 842 return -EINVAL; 843 } 844 845 pll_div->n = Ndiv; 846 Nmod = target % source; 847 Kpart = FIXED_PLL_SIZE * (long long)Nmod; 848 849 do_div(Kpart, source); 850 851 K = Kpart & 0xFFFFFFFF; 852 853 /* Check if we need to round */ 854 if ((K % 10) >= 5) 855 K += 5; 856 857 /* Move down to proper range now rounding is done */ 858 K /= 10; 859 860 pll_div->k = K; 861 862 pr_debug("WM8960 PLL: N=%x K=%x pre_div=%d\n", 863 pll_div->n, pll_div->k, pll_div->pre_div); 864 865 return 0; 866 } 867 868 static int wm8960_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id, 869 int source, unsigned int freq_in, unsigned int freq_out) 870 { 871 struct snd_soc_codec *codec = codec_dai->codec; 872 u16 reg; 873 static struct _pll_div pll_div; 874 int ret; 875 876 if (freq_in && freq_out) { 877 ret = pll_factors(freq_in, freq_out, &pll_div); 878 if (ret != 0) 879 return ret; 880 } 881 882 /* Disable the PLL: even if we are changing the frequency the 883 * PLL needs to be disabled while we do so. */ 884 snd_soc_update_bits(codec, WM8960_CLOCK1, 0x1, 0); 885 snd_soc_update_bits(codec, WM8960_POWER2, 0x1, 0); 886 887 if (!freq_in || !freq_out) 888 return 0; 889 890 reg = snd_soc_read(codec, WM8960_PLL1) & ~0x3f; 891 reg |= pll_div.pre_div << 4; 892 reg |= pll_div.n; 893 894 if (pll_div.k) { 895 reg |= 0x20; 896 897 snd_soc_write(codec, WM8960_PLL2, (pll_div.k >> 16) & 0xff); 898 snd_soc_write(codec, WM8960_PLL3, (pll_div.k >> 8) & 0xff); 899 snd_soc_write(codec, WM8960_PLL4, pll_div.k & 0xff); 900 } 901 snd_soc_write(codec, WM8960_PLL1, reg); 902 903 /* Turn it on */ 904 snd_soc_update_bits(codec, WM8960_POWER2, 0x1, 0x1); 905 msleep(250); 906 snd_soc_update_bits(codec, WM8960_CLOCK1, 0x1, 0x1); 907 908 return 0; 909 } 910 911 static int wm8960_set_dai_clkdiv(struct snd_soc_dai *codec_dai, 912 int div_id, int div) 913 { 914 struct snd_soc_codec *codec = codec_dai->codec; 915 u16 reg; 916 917 switch (div_id) { 918 case WM8960_SYSCLKDIV: 919 reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1f9; 920 snd_soc_write(codec, WM8960_CLOCK1, reg | div); 921 break; 922 case WM8960_DACDIV: 923 reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1c7; 924 snd_soc_write(codec, WM8960_CLOCK1, reg | div); 925 break; 926 case WM8960_OPCLKDIV: 927 reg = snd_soc_read(codec, WM8960_PLL1) & 0x03f; 928 snd_soc_write(codec, WM8960_PLL1, reg | div); 929 break; 930 case WM8960_DCLKDIV: 931 reg = snd_soc_read(codec, WM8960_CLOCK2) & 0x03f; 932 snd_soc_write(codec, WM8960_CLOCK2, reg | div); 933 break; 934 case WM8960_TOCLKSEL: 935 reg = snd_soc_read(codec, WM8960_ADDCTL1) & 0x1fd; 936 snd_soc_write(codec, WM8960_ADDCTL1, reg | div); 937 break; 938 default: 939 return -EINVAL; 940 } 941 942 return 0; 943 } 944 945 static int wm8960_set_bias_level(struct snd_soc_codec *codec, 946 enum snd_soc_bias_level level) 947 { 948 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); 949 950 return wm8960->set_bias_level(codec, level); 951 } 952 953 #define WM8960_RATES SNDRV_PCM_RATE_8000_48000 954 955 #define WM8960_FORMATS \ 956 (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ 957 SNDRV_PCM_FMTBIT_S24_LE) 958 959 static const struct snd_soc_dai_ops wm8960_dai_ops = { 960 .hw_params = wm8960_hw_params, 961 .digital_mute = wm8960_mute, 962 .set_fmt = wm8960_set_dai_fmt, 963 .set_clkdiv = wm8960_set_dai_clkdiv, 964 .set_pll = wm8960_set_dai_pll, 965 }; 966 967 static struct snd_soc_dai_driver wm8960_dai = { 968 .name = "wm8960-hifi", 969 .playback = { 970 .stream_name = "Playback", 971 .channels_min = 1, 972 .channels_max = 2, 973 .rates = WM8960_RATES, 974 .formats = WM8960_FORMATS,}, 975 .capture = { 976 .stream_name = "Capture", 977 .channels_min = 1, 978 .channels_max = 2, 979 .rates = WM8960_RATES, 980 .formats = WM8960_FORMATS,}, 981 .ops = &wm8960_dai_ops, 982 .symmetric_rates = 1, 983 }; 984 985 static int wm8960_probe(struct snd_soc_codec *codec) 986 { 987 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec); 988 struct wm8960_data *pdata = &wm8960->pdata; 989 990 if (pdata->capless) 991 wm8960->set_bias_level = wm8960_set_bias_level_capless; 992 else 993 wm8960->set_bias_level = wm8960_set_bias_level_out3; 994 995 snd_soc_add_codec_controls(codec, wm8960_snd_controls, 996 ARRAY_SIZE(wm8960_snd_controls)); 997 wm8960_add_widgets(codec); 998 999 return 0; 1000 } 1001 1002 static struct snd_soc_codec_driver soc_codec_dev_wm8960 = { 1003 .probe = wm8960_probe, 1004 .set_bias_level = wm8960_set_bias_level, 1005 .suspend_bias_off = true, 1006 }; 1007 1008 static const struct regmap_config wm8960_regmap = { 1009 .reg_bits = 7, 1010 .val_bits = 9, 1011 .max_register = WM8960_PLL4, 1012 1013 .reg_defaults = wm8960_reg_defaults, 1014 .num_reg_defaults = ARRAY_SIZE(wm8960_reg_defaults), 1015 .cache_type = REGCACHE_RBTREE, 1016 1017 .volatile_reg = wm8960_volatile, 1018 }; 1019 1020 static void wm8960_set_pdata_from_of(struct i2c_client *i2c, 1021 struct wm8960_data *pdata) 1022 { 1023 const struct device_node *np = i2c->dev.of_node; 1024 1025 if (of_property_read_bool(np, "wlf,capless")) 1026 pdata->capless = true; 1027 1028 if (of_property_read_bool(np, "wlf,shared-lrclk")) 1029 pdata->shared_lrclk = true; 1030 } 1031 1032 static int wm8960_i2c_probe(struct i2c_client *i2c, 1033 const struct i2c_device_id *id) 1034 { 1035 struct wm8960_data *pdata = dev_get_platdata(&i2c->dev); 1036 struct wm8960_priv *wm8960; 1037 int ret; 1038 1039 wm8960 = devm_kzalloc(&i2c->dev, sizeof(struct wm8960_priv), 1040 GFP_KERNEL); 1041 if (wm8960 == NULL) 1042 return -ENOMEM; 1043 1044 wm8960->mclk = devm_clk_get(&i2c->dev, "mclk"); 1045 if (IS_ERR(wm8960->mclk)) { 1046 if (PTR_ERR(wm8960->mclk) == -EPROBE_DEFER) 1047 return -EPROBE_DEFER; 1048 } 1049 1050 wm8960->regmap = devm_regmap_init_i2c(i2c, &wm8960_regmap); 1051 if (IS_ERR(wm8960->regmap)) 1052 return PTR_ERR(wm8960->regmap); 1053 1054 if (pdata) 1055 memcpy(&wm8960->pdata, pdata, sizeof(struct wm8960_data)); 1056 else if (i2c->dev.of_node) 1057 wm8960_set_pdata_from_of(i2c, &wm8960->pdata); 1058 1059 ret = wm8960_reset(wm8960->regmap); 1060 if (ret != 0) { 1061 dev_err(&i2c->dev, "Failed to issue reset\n"); 1062 return ret; 1063 } 1064 1065 if (wm8960->pdata.shared_lrclk) { 1066 ret = regmap_update_bits(wm8960->regmap, WM8960_ADDCTL2, 1067 0x4, 0x4); 1068 if (ret != 0) { 1069 dev_err(&i2c->dev, "Failed to enable LRCM: %d\n", 1070 ret); 1071 return ret; 1072 } 1073 } 1074 1075 /* Latch the update bits */ 1076 regmap_update_bits(wm8960->regmap, WM8960_LINVOL, 0x100, 0x100); 1077 regmap_update_bits(wm8960->regmap, WM8960_RINVOL, 0x100, 0x100); 1078 regmap_update_bits(wm8960->regmap, WM8960_LADC, 0x100, 0x100); 1079 regmap_update_bits(wm8960->regmap, WM8960_RADC, 0x100, 0x100); 1080 regmap_update_bits(wm8960->regmap, WM8960_LDAC, 0x100, 0x100); 1081 regmap_update_bits(wm8960->regmap, WM8960_RDAC, 0x100, 0x100); 1082 regmap_update_bits(wm8960->regmap, WM8960_LOUT1, 0x100, 0x100); 1083 regmap_update_bits(wm8960->regmap, WM8960_ROUT1, 0x100, 0x100); 1084 regmap_update_bits(wm8960->regmap, WM8960_LOUT2, 0x100, 0x100); 1085 regmap_update_bits(wm8960->regmap, WM8960_ROUT2, 0x100, 0x100); 1086 1087 i2c_set_clientdata(i2c, wm8960); 1088 1089 ret = snd_soc_register_codec(&i2c->dev, 1090 &soc_codec_dev_wm8960, &wm8960_dai, 1); 1091 1092 return ret; 1093 } 1094 1095 static int wm8960_i2c_remove(struct i2c_client *client) 1096 { 1097 snd_soc_unregister_codec(&client->dev); 1098 return 0; 1099 } 1100 1101 static const struct i2c_device_id wm8960_i2c_id[] = { 1102 { "wm8960", 0 }, 1103 { } 1104 }; 1105 MODULE_DEVICE_TABLE(i2c, wm8960_i2c_id); 1106 1107 static const struct of_device_id wm8960_of_match[] = { 1108 { .compatible = "wlf,wm8960", }, 1109 { } 1110 }; 1111 MODULE_DEVICE_TABLE(of, wm8960_of_match); 1112 1113 static struct i2c_driver wm8960_i2c_driver = { 1114 .driver = { 1115 .name = "wm8960", 1116 .owner = THIS_MODULE, 1117 .of_match_table = wm8960_of_match, 1118 }, 1119 .probe = wm8960_i2c_probe, 1120 .remove = wm8960_i2c_remove, 1121 .id_table = wm8960_i2c_id, 1122 }; 1123 1124 module_i2c_driver(wm8960_i2c_driver); 1125 1126 MODULE_DESCRIPTION("ASoC WM8960 driver"); 1127 MODULE_AUTHOR("Liam Girdwood"); 1128 MODULE_LICENSE("GPL"); 1129